Spectra and Light Curves of Failed Supernovae (2009)
Fryer, Chris L., Brown, Peter J., Bufano, Filomena, Dahl, Jon A., Fontes, Christopher J., Frey, Lucille H., ...
Astronomers have proposed a number of mechanisms to produce supernova explosions. Although many of these mechanisms are now not considered primary engines behind supernovae, they do produce...
The He-rich core-collapse supernova 2007Y: observations from x-ray to radio wavelengths (2009)
Stritzinger, Maximilian, Mazzali, P., Phillips, Mark M., Immler, Stefan, Soderberg, Alicia, Sollerman, Jesper, ...
A detailed study spanning approximately a year has been conducted on the Type Ib supernova (SN) 2007Y. Imaging was obtained from X-ray to radio wavelengths, and a comprehensive set of multi-band...
X-rays from the explosion site: Fifteen years of light curves of SN 1993J (2009)
Chandra, Poonam, Dwarkadas, Vikram V., Ray, Alak, Immler, Stefan, Pooley, David
We present a comprehensive analysis of the X-ray light curves of SN 1993J in a nearby galaxy M81. This is the only supernova other than SN 1987A, which is so extensively followed in the X-ray bands....
Radio Supernovae: Circum-Stellar Investigation (C.S.I.) of Supernova Progenitor Stars (2009)
Stockdale, Christopher J., Weiler, Kurt W., Panagia, Nino, Sramek, Richard A., Van Dyk, Schuyler D., Immler, Stefan, ...
Prior to explosion, a supernova progenitor slowly loses significant amounts of its hydrogen envelope in a stellar wind. After the explosion, the blastwave interacts with this wind producing...
The He-rich core-collapse supernova 2007Y: Observations from X-ray to Radio Wavelengths (2009)
Stritzinger, Maximilian, Mazzali, Paolo, Phillips, Mark M., Immler, Stefan, Soderberg, Alicia, Sollerman, Jesper, ...
A detailed study spanning approximately a year has been conducted on the Type Ib supernova 2007Y. Imaging was obtained from X-ray to radio wavelengths, and a comprehensive set of multi-band...
The He-rich core-collapse supernova 2007Y: observations from X-ray to radio wavelengths (2009)
Stritzinger, Maximilian, Mazzali, Paolo, Phillips, Mark M., Immler, Stefan, Soderberg, Alicia, Sollerman, Jesper, ...
Ultraviolet Light Curves of Supernovae with Swift Uvot (2008)
Brown, Peter J., Holland, Stephen T., Immler, Stefan, Milne, Peter, Roming, Peter W. A., Gehrels, Neil, ...
We present ultravioliet (UV) observations of supernovae (SNe) obtained with the UltraViolet/Optical Telescope (UVOT) on board the Swift spacecraft. This is the largest sample of UV light curves from...
Swift UVOT Observations of Core-Collapse SNe (2008)
Brown, Peter J., Roming, Peter W. A., Berk, Daniel E. Vanden, Holland, Stephen T., Immler, Stefan, Milne, Peter
We review recent UV observations of core-collapse supernovae (SNe) with the Swift Ultra-violet/Optical Telescope (UVOT) during its first two years. Rest-frame UV photometry is useful for...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of...
Broadband observations of the naked-eye y-ray burst GRB 080319B (2008)
Racusin, Judith L., Karpov, S. V., Sokolowski, M., Granot, Jonathan, Wu, Xiao Feng, Pal'shin, V., ...
Long-duration y-ray bursts (GRBs) release copious amounts of energy across the entire electromagnetic spectrum, and so provide a window into the process of black hole formation from the collapse of...
Dessart, Luc, Blondin, Stephane, Brown, Peter J., Hicken, Malcolm, Hillier, D. John, Holland, Stephen T., ...
We analyze the Type II Plateau supernovae (SN II-P) 2005cs and 2006bp with the non-LTE model atmosphere code CMFGEN. We fit 13 spectra in the first month for SN 2005cs and 18 for SN 2006bp. {\sl...
Brown, Peter J., Dessart, Luc, Holland, Stephen T., Immler, Stefan, Landsman, Wayne, Blondin, Stéphane, ...
Early Ultraviolet, Optical and X-Ray Observations of the Type IIP SN 2005cs in M51 with Swift (2006)
Brown, Peter J., Dessart, Luc, Holland, Stephen T., Immler, Stefan, Landsman, Wayne, Blondin, Stephane, ...
We report early photospheric-phase observations of the Type IIP Supernova (SN) 2005cs obtained by Swift's Ultraviolet-Optical and X-Ray Telescopes. Observations started within two days of discovery...
We report on the discovery of X-ray emission from SN 1970G in M101, 35 years after its outburst, using deep X-ray imaging with the Chandra X-ray observatory. The Chandra ACIS spectrum shows that the...
Late-time X-Ray, UV and Optical Monitoring of Supernova 1979C (2005)
Immler, Stefan, Fesen, Robert A., Van Dyk, Schuyler D., Weiler, Kurt W., Petre, Robert, Lewin, Walter H. G., ...
We present results from observations of SN 1979C with XMM-Newton in X-rays and in the UV, archival X-ray and HST data, and follow-up ground-based optical imaging. The XMM-Newton MOS spectrum shows...
Late-time X-ray, UV, and optical monitoring of Supernova 1979C (2005)
Immler, Stefan, Fesen, Robert A., Van Dyk, Schuyler D., Weiler, Kurt W., Petre, Robert, Lewin, Walter H. G., ...
X-ray constraints on ionizing photons from accreting black holes at Z~6 (2004)
Moustakas, Leonidas A., Immler, Stefan
Using an X-ray stacking procedure, we provide a robust upper limit to the X-ray luminosity per object of a set of 54 z~5.8 galaxy candidates in the Hubble Ultra Deep Field, which is within the 1...
X-ray Emission from the Type Ic Supernova 1994I Observed with Chandra (2002)
Immler, Stefan, Wilson, Andrew S., Terashima, Yuichi
We present two high-resolution Chandra X-ray observations of supernova (SN) 1994I which show, for the first time, that the interaction of the blast wave from a Type Ic SN with its surrounding...
Immler, Stefan, Lewin, Walter H. G.
We present a review of X-ray observations of supernovae (SNe). By observing the (~0.1-100 keV) X-ray emission from young SNe, physical key parameters such as the circumstellar matter (CSM) density,...
X-Ray Detection of a Pre-Supernova Evolution for the SN 1993J Progenitor (2001)
Immler, Stefan, Aschenbach, Bernd, Wang, Q. Daniel
We report on the first detection of a pre-supernova (SN) evolution in the X-ray regime. The results are based on ROSAT observations of SN 1993J ranging from six days to five years after the outburst....
Chandra Detection of a Hot Gaseous Corona Around the Edge-on Galaxy NGC 4631 (2001)
Wang, Q. Daniel, Immler, Stefan, Walterbos, Rene, Lauroesch, James T., Breitschwerdt, Dieter
We present a Chandra X-ray observation that shows, unambiguously for the first time, the presence of a giant diffuse X-ray-emitting corona around the edge-on disk galaxy NGC 4631. This corona, with a...
ROSAT X-Ray Observations of the Spiral Galaxy M81 (2001)
Immler, Stefan, Wang, Q. Daniel
We present results from the analysis of deep ROSAT HRI and PSPC observations of the spiral galaxy M81. The inferred total (0.5-2 keV band) luminosity of M81 is ~3x10^40 ergs/s, excluding the...
Wang, Q. Daniel, Immler, Stefan, Pietsch, Wolfgang
We have studied the X-ray source population of the face-on spiral galaxy M101 (NGC 5457). Within a field of radius 17' (36 kpc at the distance of 7.2 Mpc), covered by an ultradeep (229 ks) ROSAT HRI...